Chapter 5 exercises

1- If the lines g and h are parallel, then the value of x in the figure below is:

2- Lines f and g are parallel. Based on that assumption, determine x and y.

3- Lines f and g are parallel. Based on that assumption,  determine x and y.

4 (Dolce & Pompeu) - The sum of the acute angles formed by two parallel lines cut by a transversal is equal to 80º. Determine the obtuse angle.

5-Determine the value of x in the following figure.

6-Determine the value of x in the following figure.

7-Determine the value of x in the following figure.

8-Determine the value of and angles in the following figure.